binutils/emul_aix.c

   1 /* Binutils emulation layer.
   2    Copyright (C) 2002-2022 Free Software Foundation, Inc.
   3    Written by Tom Rix, Red Hat Inc.
   4
   5    This file is part of GNU Binutils.
   6
   7    This program is free software; you can redistribute it and/or modify
   8    it under the terms of the GNU General Public License as published by
   9    the Free Software Foundation; either version 3 of the License, or
  10    (at your option) any later version.
  11
  12    This program is distributed in the hope that it will be useful,
  13    but WITHOUT ANY WARRANTY; without even the implied warranty of
  14    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  15    GNU General Public License for more details.
  16
  17    You should have received a copy of the GNU General Public License
  18    along with this program; if not, write to the Free Software
  19    Foundation, Inc., 51 Franklin Street - Fifth Floor, Boston,
  20    MA 02110-1301, USA.  */
  21
  22 #include "binemul.h"
  23 #include "bfdlink.h"
  24 #include "coff/internal.h"
  25 #include "coff/xcoff.h"
  26 #include "libcoff.h"
  27 #include "libxcoff.h"
  28
  29 /* Default to <bigaf>.  */
  30 /* FIXME: write only variable.  */
  31 static bool big_archive = true;
  32
  33 /* Whether to include 32 bit objects.  */
  34 static bool X32 = true;
  35
  36 /* Whether to include 64 bit objects.  */
  37 static bool X64 = false;
  38
  39 static void
  40 ar_emul_aix_usage (FILE *fp)
  41 {
  42   AR_EMUL_USAGE_PRINT_OPTION_HEADER (fp);
  43   /* xgettext:c-format */
  44   fprintf (fp, _("  [-g]         - 32 bit small archive\n"));
  45   fprintf (fp, _("  [-X32]       - ignores 64 bit objects\n"));
  46   fprintf (fp, _("  [-X64]       - ignores 32 bit objects\n"));
  47   fprintf (fp, _("  [-X32_64]    - accepts 32 and 64 bit objects\n"));
  48 }
  49
  50 static bool
  51 check_aix (bfd *try_bfd)
  52 {
  53   extern const bfd_target rs6000_xcoff_vec;
  54   extern const bfd_target rs6000_xcoff64_vec;
  55   extern const bfd_target rs6000_xcoff64_aix_vec;
  56
  57   if (bfd_check_format (try_bfd, bfd_object))
  58     {
  59       if (!X32 && try_bfd->xvec == &rs6000_xcoff_vec)
  60         return false;
  61
  62       if (!X64 && (try_bfd->xvec == &rs6000_xcoff64_vec
  63                    || try_bfd->xvec == &rs6000_xcoff64_aix_vec))
  64         return false;
  65     }
  66   return true;
  67 }
  68
  69 static bool
  70 ar_emul_aix_append (bfd **after_bfd, bfd *new_bfd,
  71                     bool verbose, bool flatten)
  72 {
  73   return do_ar_emul_append (after_bfd, new_bfd, verbose, flatten, check_aix);
  74 }
  75
  76 static bool
  77 ar_emul_aix_replace (bfd **after_bfd, bfd *new_bfd,
  78                      bool verbose)
  79 {
  80   if (!check_aix (new_bfd))
  81     return false;
  82
  83   AR_EMUL_REPLACE_PRINT_VERBOSE (verbose, bfd_get_filename (new_bfd));
  84
  85   new_bfd->archive_next = *after_bfd;
  86   *after_bfd = new_bfd;
  87
  88   return true;
  89 }
  90
  91 static bool
  92 ar_emul_aix_parse_arg (char *arg)
  93 {
  94   if (startswith (arg, "-X32_64"))
  95     {
  96       big_archive = true;
  97       X32 = true;
  98       X64 = true;
  99     }
 100   else if (startswith (arg, "-X32"))
 101     {
 102       big_archive = true;
 103       X32 = true;
 104       X64 = false;
 105     }
 106   else if (startswith (arg, "-X64"))
 107     {
 108       big_archive = true;
 109       X32 = false;
 110       X64 = true;
 111     }
 112   else if (startswith (arg, "-g"))
 113     {
 114       big_archive = false;
 115       X32 = true;
 116       X64 = false;
 117     }
 118   else
 119     return false;
 120
 121   return true;
 122 }
 123
 124 struct bin_emulation_xfer_struct bin_aix_emulation =
 125 {
 126   ar_emul_aix_usage,
 127   ar_emul_aix_append,
 128   ar_emul_aix_replace,
 129   ar_emul_aix_parse_arg,
 130 };